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2. Bitcoin - Wikipedia

   en.wikipedia.org/wiki/Bitcoin

   Bitcoin (abbreviation: BTC; sign: ₿) is the first decentralized cryptocurrency. Nodes in the peer-to-peer bitcoin network verify transactions through cryptography and record them in a public distributed ledger , called a blockchain , without central oversight.

3. Currency pair - Wikipedia

   en.wikipedia.org/wiki/Currency_pair

   A widely traded currency pair is the relation of the euro against the US dollar, designated as EUR / USD. The quotation EUR/USD 1.2500 means that one euro is exchanged for 1.2500 US dollars. Here, EUR is the base currency and USD is the quote currency (counter currency). This means that 1 Euro can be exchangeable to 1.25 US Dollars.

4. Cryptocurrency - Wikipedia

   en.wikipedia.org/wiki/Cryptocurrency

   By November 2018, bitcoin was estimated to have an annual energy consumption of 45.8TWh, generating 22.0 to 22.9 million tons of CO 2, rivalling nations like Jordan and Sri Lanka. [254] By the end of 2021, bitcoin was estimated to produce 65.4 million tons of CO 2, as much as Greece, [255] and consume between 91 and 177 terawatt-hours annually ...

5. History of bitcoin - Wikipedia

   en.wikipedia.org/wiki/History_of_bitcoin

   History of bitcoin. Bitcoin is a cryptocurrency, a digital asset that uses cryptography to control its creation and management rather than relying on central authorities. [1] Originally designed as a medium of exchange, Bitcoin is now primarily regarded as a store of value.

6. Satoshi Nakamoto - Wikipedia

   en.wikipedia.org/wiki/Satoshi_Nakamoto

   Satoshi Nakamoto message embedded in the coinbase of the first block. Nakamoto said that the work of writing bitcoin's code began in the second quarter of 2007. [9] On 18 August 2008, he or a colleague registered the domain name bitcoin.org, [10] and created a web site at that address.

7. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

   www.aol.com

   AOL latest headlines, entertainment, sports, articles for business, health and world news.

8. Virtual currency - Wikipedia

   en.wikipedia.org/wiki/Virtual_currency

   Virtual currency. Virtual currency, or virtual money, is a digital currency that is largely unregulated, issued and usually controlled by its developers, and used and accepted electronically among the members of a specific virtual community. [1] In 2014, the European Banking Authority defined virtual currency as "a digital representation of ...

9. List of bitcoin companies - Wikipedia

   en.wikipedia.org/wiki/List_of_Bitcoin_companies

   bitcoin exchange [citation needed] Bitwala: 2015 Germany: Berlin: bitcoin debit card, international transfers, bitcoin wallet [2] Blockchain.com: 2011 Luxembourg: wallet provider [citation needed] Blockstream: 2014 United States: San Francisco: software [citation needed] BTC-e: 2011 Russia: bitcoin exchange Shut down by the United States ...